Add demo for SSL server using SSL_CONF.

1 files changed, 135 insertions, 0 deletions

diff --git a/demos/bio/server-arg.c b/demos/bio/server-arg.c
new file mode 100644
index 0000000000..cf8e86b754
--- /dev/null
+++ b/demos/bio/server-arg.c
@@ -0,0 +1,135 @@
+/* NOCW */
+/* demos/bio/saccept.c */
+
+/* A minimal program to server an SSL connection.
+ * It uses blocking.
+ * saccept host:port
+ * host is the interface IP to use.  If any interface, use *:port
+ * The default it *:4433
+ *
+ * cc -I../../include saccept.c -L../.. -lssl -lcrypto
+ */
+
+#include <stdio.h>
+#include <signal.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+
+
+int main(int argc, char *argv[])
+	{
+	char *port = "*:4433";
+	BIO *ssl_bio,*tmp;
+	SSL_CTX *ctx;
+	SSL_CONF_CTX *cctx;
+	char buf[512];
+	BIO *in=NULL;
+	int ret=1,i;
+	char **args = argv + 1;
+	int nargs = argc - 1;
+
+	SSL_load_error_strings();
+
+	/* Add ciphers and message digests */
+	OpenSSL_add_ssl_algorithms();
+
+	ctx=SSL_CTX_new(SSLv23_server_method());
+
+	cctx = SSL_CONF_CTX_new();
+	SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
+	SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CERTIFICATE);
+	SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
+	while(*args && **args == '-')
+		{
+		int rv;
+		/* Parse standard arguments */
+		rv = SSL_CONF_cmd_argv(cctx, &nargs, &args);
+		if (rv == -3)
+			{
+			fprintf(stderr, "Missing argument for %s\n", *args);
+			goto err;
+			}
+		if (rv < 0)
+			{
+			fprintf(stderr, "Error in command %s\n", *args);
+			ERR_print_errors_fp(stderr);
+			goto err;
+			}
+		/* If rv > 0 we processed something so proceed to next arg */
+		if (rv > 0)
+			continue;
+		/* Otherwise application specific argument processing */
+		if (!strcmp(*args, "-port"))
+			{
+			port = args[1];
+			if (port == NULL)
+				{
+				fprintf(stderr, "Missing -port argument\n");
+				goto err;
+				}
+			args += 2;
+			nargs -= 2;
+			continue;
+			}
+		else
+			{
+			fprintf(stderr, "Unknown argument %s\n", *args);
+			goto err;
+			}
+		}
+
+	if (!SSL_CONF_CTX_finish(cctx))
+		{
+		fprintf(stderr, "Finish error\n");
+		ERR_print_errors_fp(stderr);
+		goto err;
+		}
+
+	/* Setup server side SSL bio */
+	ssl_bio=BIO_new_ssl(ctx,0);
+
+	if ((in=BIO_new_accept(port)) == NULL) goto err;
+
+	/* This means that when a new connection is acceptede on 'in',
+	 * The ssl_bio will be 'dupilcated' and have the new socket
+	 * BIO push into it.  Basically it means the SSL BIO will be
+	 * automatically setup */
+	BIO_set_accept_bios(in,ssl_bio);
+
+again:
+	/* The first call will setup the accept socket, and the second
+	 * will get a socket.  In this loop, the first actual accept
+	 * will occur in the BIO_read() function. */
+
+	if (BIO_do_accept(in) <= 0) goto err;
+
+	for (;;)
+		{
+		i=BIO_read(in,buf,512);
+		if (i == 0)
+			{
+			/* If we have finished, remove the underlying
+			 * BIO stack so the next time we call any function
+			 * for this BIO, it will attempt to do an
+			 * accept */
+			printf("Done\n");
+			tmp=BIO_pop(in);
+			BIO_free_all(tmp);
+			goto again;
+			}
+		if (i < 0) goto err;
+		fwrite(buf,1,i,stdout);
+		fflush(stdout);
+		}
+
+	ret=0;
+err:
+	if (ret)
+		{
+		ERR_print_errors_fp(stderr);
+		}
+	if (in != NULL) BIO_free(in);
+	exit(ret);
+	return(!ret);
+	}
+